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Finding the Fourth Proportional to 68,191.36, 102,198.72 and 55,048.96

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Solution

The fourth proportional to 68,191.36, 102,198.72 and 55,048.96 is: 82,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,191.36 : 102,198.72 = 55,048.96 : x
  2. Step 2: Convert to fraction form
    68,191.36/102,198.72 = 55,048.96/x
  3. Step 3: Cross multiply
    68,191.36x = 102,198.72 × 55,048.96
  4. Step 4: Simplify right side
    68,191.36x = 5,625,933,249.33
  5. Step 5: Solve for x
    x = 5,625,933,249.33/68,191.36
  6. Step 6: Final answer
    x = 82,502.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.